This position is responsible for driving cross-functional alignment, readiness, transparency, and issue resolution across multiple System Engineering Teams (SETs) within the Exteriors and Interiors domain. The Main System Engineer works closely with SET Leaders, Technical Program Leaders (TPLs), Product, Purchasing, Manufacturing, Finance, Quality, and Logistics teams to ensure technical content, program milestones, sourcing activities, risks, and deliverables are mature and aligned prior to leadership reviews and decision-making forums.